Online backup and sync software

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Google stuff.
Name Type Review Conflict handling Delta sync[1]
Backup & Sync from Google Note: Since nothing Google makes has Delta sync, every time you make a tiny change to a massive file the stupid system has to reupload the entire thing. Only Dropbox (and a few others) support Delta sync, which makes all of these solutions completely useless for my purposes. 2nd file renamed to conflict file No
Google Drive for Desktop No
Drive File Stream No
Name Type Review Conflict handling Delta sync[1]
Air Explorer
Amazon Drive Seems to be one of the only sync solutions offering differential sync. However, otherwise a pretty abysmal experience. Yes
Backblaze Yes
Cloud Xtender
CloudBuckit (✞)
CrashPlan Yes
Dropbox The granddaddy of cloud backup/syncing. Their recent (completely pointless) overhaul of the UI notwithstanding, Dropbox is still unbeatable if you want all your work files synced between multiple locations and need a good delta/differential sync system so each time you make one tiny change to a 2GB file you don't have to reupload the whole thing. Over and over again. I'm looking at you, Google Drive, OneDrive, etc. Yes
Duplicacy Yes
ExpanDrive mounts Google Drive as Z:/, but with a substantial lag
odrive 2nd file renamed to conflict file
Nextcloud open-source private cloud solution No
OneDrive Yes
OwnCloud open-source private cloud solution Pretty interesting, just wish I could change that horrible light green colour of the UI. Yes
Pydio open-source private cloud solution
Resilio Sync formerly BitTorrent Sync
Seafile open-source private cloud solution Yes
SparkleShare open-source private cloud solution
StableBit CloudDrive Google Drive alternative, but creates random files in your Google Drive
StableBit DrivePool “Files are never locked by duplication at any time. This means that other programs can continue to use the pool even while existing files are being duplicated.”
Syncthing open-source private cloud solution ‘Syncthing has NO central server. It is peer-to-peer file/folder synchronization. you run the Syncthing application on EVERY device you want to sync. It is both server and client and only talks with other Syncthing applications. You cannot share individual files with Syncthing.’ (src) I think so
Zoolz / BigMIND

Open source private cloud solutions[edit | edit source]

  • ownCloud
  • Nextcloud
  • Seafile
  • Syncthing
  • Pydio
  • SparkleShare

Other people’s lists[edit | edit source]

  1. 1.0 1.1 Synonyms: differential sync, differential copying, differential backup, differential upload / delta sync, delta copying, delta backup. delta upload / block-level sync, block-level copying, block-level backup, block-level upload / incremental sync, incremental copying, incremental backup, incremental upload, etc.